Datasheet

Travelstar 80GN Hard Disk Drive Specification
53
7.9.7 Device Terminating Write DMA
Table 34: Ultra DMA cycle timings (Device TerminatingWrite)
PARAMETER DESCRIPTION
MODE 0MODE 1MODE 2MODE 3MODE 4MODE 5
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
tRFS DDMARDY- to final HSTROBE
time
–75–70–60–60–60–50
tRP Ready to pause time 160 – 125 – 100 – 100 – 100 – 85 –
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75
tMLI Interlocking time with minimum 20 – 20 – 20 – 20 – 20 – 20 –
tCS CRC word setup time at device 15 – 10 – 7 – 7 – 5 – 4 –
tCH CRC word hold time at device 5–5–5–5–5–4.6–
tACK Hold time for DMACK-negation 20 – 20 – 20 – 20 – 20 – 20 –
tIORDYZ Maximum time before releasing
IORDY
–20–20–20–20–20–20
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
xxxxxxxxxxxxxxxxxxxxxxxxxx
Host drives DD
tCH
tCS
CRC
tLI
tACK
tACK
tRFS
tLI
tIORDYZ
xxx WT Data xxxxxxxxxx